---
id: "MAL-2026-18457"
kind: "package"
aliases: ["MAL-2026-18457"]
title: "Malicious code in bigbob22-test (npm)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "bigbob22-test", "fixed": [], "affected": "= 1.0.0", "ecosystem": "npm"}]
ecosystems: ["npm"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-01T21:27:39+00:00"
first_seen_at: "2026-11-02T07:21:41+00:00"
updated_at: "2026-11-02T07:24:32+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-18457", "first_seen_at": "2026-11-02T07:21:41+00:00"}]
---

# Malicious code in bigbob22-test (npm)

## Affected

- npm:bigbob22-test affected = 1.0.0 fixed ?

## Timeline

- 2026-11-02T07:21:41+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-18457

## From the sources

bigbob22-test@1.0.0 has no functional code and an empty README. Its preinstall script runs `node preinstall.js` on npm install, which POSTs the machine's hostname, the OS username and the local time to the Discord webhook `https://canary.discord.com/api/webhooks/1566232728179843243/pM5rDIrCRrEpQRbA7ibaiQk1XOQlIftmBacA5s8jD8NvXn5W-rS832DOWHQS-G-j3N6U` as "PC Notifier". It was published by the npm account cutekitten05, which used the same script in wallet-adapter-base, axelarjs-sdk, cutekitten-test and sol-wallet-adapter on 2026-11-01.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_